Parallel lines have the same gradient so it’s the second or the fourth answer.

y = mx + c
y = 2x + c
3 = (2 x 2) + c
3 = 4 + c
3 - 4 = c
c = -1

y = 2x - 1

8 0

3 years ago

9x−4=−1 how do i show my work for this?

AnnZ [28]

Answer:

x = 1/3

Step-by-step explanation:

9x - 4 = -1

9x = -1 + 4

9x = 3

8 0

3 years ago

The ancient Egyptians had to be skilled mathematicians to build their pyramids correctly. If they built a pyramid like the one b

Reptile [31]

Answer:

513333.33 cubic yards

Solution:

$\frac{1}{2} bh$

$\frac{1}{2} (110)(140)$

$=7700$

$V = 1/3AH$

$V = 1/3(7700)(200)$

$V=513333.33$

4 0

3 years ago